Wooden lappet



'w. H. BOWKER. WOODEN LAPPET. APPLICATION FILED JAN. 6, I920.

Patented Sept. 7, 1920.

WILLIAM H. BOWKER, 0F MANCHESTER, ENGLAND.

WOODEN LAPPET.

Specification of Letters Patent.

Patented Sept. 7, 1920.

Application filed January 6, 1920. Serial No. 349,719.

To all whom it may concern:

Be it known that I, XVILLIAM' HENRY Bowman, subject of the King of Great Britain and Ireland, and resident of Manchester, in the county of Lancaster, England, have invented certain Improvements in and connected with lVooden Lappets, of which the following is a specification.

This invention relates to wooden lappets as used in spinning, doubling and twisting frames and particularly to the thread guide wire of such lappets. The object is to insure greater security and rigidity of the thread guide wire and to provide means whereby accu ate longitudinal adjustment of the said thread guidewire can be obtained.

T his invention comprises in combination a thread wire of the type having a shank of rectangular section, two washers or metal plates through which the thread guide wire passes, a double adjusting nut and a metal hinge so arranged that one wing lies between the two parts of the double adjusting nut the other wing being cut to house the end of the thread guide wire and the outer part of the double nut.

A sheet of drawings is appended whereon,

Figure 1, is a side elevation of a wooden lappet with the invention applied,

Fig. 2, is a front elevation of Fig. 1,

Fig. 8, is a plan view of Fig. 1, and

Fig. 4, is'a side elevation in section showing the lappet in a raised position.

In a preferred construction a thread guide wire a, the shank I) of which is rectangular in section, is employed. The ordinary wooden lappet c is drilled from front to rear,'and two washers (Z and Q are securely fixed in position at the front and rear entrances of the hole. The washers (Z and Q have a rectangular hole cut in them corresponding with the section of the thread guide wire a. The usual metal hinge e which secures the lappet to the lappet rail is modified. The wing f attached to the wooden lappet c has a slot 9 cut in it. The shank b of the thread guide wire is screwthreaded at h in the same manner as the thread guide wires used in metal lappets, and a double adjusting nut 2', j, is screwthreaded thereon. lVhen the hinge'is placed in position the wing f attached to the wooden lappet 0 divides the double nut, one part 2' lying on the outer side of the slot 9, and the other part on the inner side of the slot 9. The wing 70 of the hinge e secured to the lappet rail Z is partly cut away at m and the lappet rail Z can also be recessed at n to house the outer part Z of the double adjusting nut i, j, and the end 0 of the thread guide wire a.

It will be understood from the foregoing description that the employment of two washers, such as (Z and 9, having holes of approximately similar sections to the thread guide wire imparts greater security and i igioity to the said thread gulde wire a. sit the same time tne thread guide wire a by passing completely through the lappet c, strengthens the said lappet. Any desired longitudinal adjustment of the thread guide wire can be secured. It will be readily understood that this invention can be applied to existing wooden lappets.

What I claim and desire to secure by Letters Patent is 1. In wooden lappets means for adjustably securing a thread guide wire the shank of which is rectangular in section and screw threaded at its inner end comprising in combination two washers or metal plates having holes of similar section to the thread guide wire shank, a double adjusting nut and a metal hinge for attaching the lappet to the lappet rail, the said hinge being arranged that one wing lies between the two parts of the double adjusting nut the other wing being cut to house the end of the thread guide wire and the outer part of the double nut.

2. in wooden lappets for supporting thread guide wires having shanks of rectangular section the provision of two washers or plates having holes of similar section arranged at either end of the hole cut in the wooden lappet for the rigid support of the thread guide wire.

3. In wooden lappets for supporting hread guide wires having shanks of rectangular section and screw threaded at heir inner ends in combination with a double adjusting nut, the provision of a hinge having a recess cut in one wing arranged so that the said hinge will lie between the inner and outerparts of the double nut, the other wing being cut to house the outer part of the double nut and the end of the thread guide wire.

In testimony whereof I have hereunto set 

